SU1417791A3 - Control device for straightening direction of endless belt motion - Google Patents

Abstract

Disclosed is a control device and process for aligning, in the running direction, an endless belt. The device comprises a lifting cylinder with a ram which is retracted or extended as a result of switching signals received from microswitches via a control circuit. The device further includes a pivotal wing which is pivoted by the extending ram in the running direction A of the belt, and a deflecting roller having an axle, the ends of which are mounted in the eyeparts of eyebolts. During pivoting, the wing presses one eyebolt, resting at its bolt end against the front side of the wing, in the running direction A of the belt. The axle, mounted at its axle end, with a certain play in the eyepart of the other positionally fixed eyebolt, is pivoted as a result. As soon as the belt runs out of alignment, that is to say deviates from the running direction A, one of the belt edges actuates the associated microswitch and consequently the lifting cylinder. As a result of the pivoting of the axle of the deflecting roller, the non-aligned running of the belt is constantly counteracted and the belt is deflected counter to the nonaligned direction until it actuates the other microswitch.

Description

The invention relates to belt conveyors, namely control devices for leveling the direction of movement of the endless belt.

The aim of the invention is to increase the reliability of the control device.

FIG. 1 shows a control device in perspective; in fig. 2 - the same, top view.

Controlled device for leveling the direction of movement of the endless belt includes a drive roller

plates 15 and 1, one of which (15) has a rack 33 located in the slot 34. The rack 33 is rigidly connected to the plate 15 by a bolt 35. Each folding bolt 19 and 20 has nuts 36 installed with the possibility of an emphasis on the supports 15 and 16 .

The control device operates as follows.

If, during operation, the tape 3 begins to shift to the side (in the direction of the arrow B), first, for example, the edge 11 of the tape 3 touches the microweb

1 and the bypass roller 2, the envelopes of the cable 15, which through the tool are searched for with the end tape 3. The bypass roller 2 of the circuit 7 gives a signal to the lifting cy- located and 4, one end of the cylinder 5, which leads to an increase in the thickness with the ability of the slider 6, which turns the U.-movement in the direction of movement, the flap bracket 22 in the direction of the arrow 3 (in the direction of arrow A) lifting cylinder-20 A;

rum 5 with the pusher 6. The pusher 6 is connected by a control circuit 7 with level switches 8 and 9, which are installed, in the area of the edges 10 and 11 of the tape 3 on the transverse beam 12, which passes between the upper and lower branches of the tape 3. From the beam 12 is connected to the longitudinal beams 13 and 14 with the supports 15 and 16. The longitudinal beams 13 and 14 are arranged in parallel and at a distance from each edge 10 and 11 of the tape 3. The ends 17 and 18 of axis 4 are mounted on the supports 15 and 16 by means of parallel folding bolts 19 and 20, located in the holes of the supports 15 and 16. One of the longitudinal beams 13 Has a guide 21 and an i-shaped bracket 22 with a front 23 and a rear 24 sides. Sco

the bolt 20 is transmitted to the axis 4 of the bypass roller 2. The end 18 of the axis 4 rotates in the direction of the arrow C forward, and the other end 17 of the axis 4 due to the presence of the gap can work as the center of rotation of the axis 4. The shaft rotates until the lifting force of the cylinder 5 is equalized with the force of tension of the tape 3, which due to the rotation of the axis 4 receives additional tension, limiting. The axis 4 is rotated. The rotation of the axis 4 creates an opposition to the displacement of the belt 3. The belt 3 moves in the direction opposite to the displacement until the microswitch 9 is turned on. During the reverse movement of the belt 3, the pusher 6 is constantly extended and abuts on the bracket 22. After power on

ba 22 is connected to the longitudinal beam 13 by a vertical axis 25. With one hundred-40 microswitch 9 through the control RONY a push rod 7 rests against the cylinder 5 on the cylinder 5,

6 cylinder 5, and on the other - a hinged bolt 20 with a threaded end. 26. On the hinged bolt 19 installed axis 4 bypass roller 2 with a gap. The lifting cylinder 5 is mounted on the longitudinal beam 13 by means of the angular ry 27, and the pusher 6 is located in the guide 28. The hinged bolt 20 is installed with the pushing to the side of the pushing body 6, due to which the latter has a greater steep moment. and the figurative bracket 22 has screws 29 and 30 with heads 31 and 32 which form

which pushes the pusher 6 inward and the axis 4 rotates (opposite the arrow A) due to the tension of the belt 45. At the same time, the nut 36 of the hinged bolt 20 limits the rotation of the axis 4.

Claims (3)

1. A control device for leveling the direction of movement of the endless belt, comprising a tape around the drive roller and a bypass roller located on the axis, one end the counter supports for the hinged bolt stop / / with which is installed with the possibility 20 and the pusher 6. Supports 15 and 16 can be made in the form of a transverse beam 12, and in the form attached to the longitudinal beams 13 and 14 movements in the direction of movement of an endless belt by a lifting cylinder with a pusher connected by an operating circuit with microswitches five 0 five the bolt 20 is transferred to the axis 4 of the bypass roller 2. The end 18 of the axis 4 rotates in the direction of the arrow C forward, and the other end 17 of the axis 4 due to the presence of the gap can work as the center of rotation of the axis 4. The end rotates until the lifting force of the cylinder 5 is equalized with the tension of the belt 3, which, due to the rotation of the axis 4, receives additional tension, which limits -. The 4 axis rotation. 4 axis rotation. gives opposition to tape misalignment 3. The belt 3 moves in the direction opposite to the displacement until it turns on the microswitch 9. During the reverse movement of the belt 3, the pusher 6 is constantly pulled out and rests on the bracket 22. After switching on 0 microswitch 9 through the control circuit 7 to the cylinder 5 is given a signal which pushes the pusher 6 inward and the axis 4 rotates (opposite the arrow A) due to the tension of the belt 3. The nut 36 of the hinged bolt 20 restricts the rotation of the axis 4. Invention Formula 1. A control device for leveling the direction of movement of the endless belt, comprising a tape around the drive roller and a bypass roller located on the axis, one end moving in the direction of movement of the endless belt by a lifting cylinder with a pusher connected by a control circuit with microswitches. 17